Exercise chair



FIG. 1 is a perspective view of an exercise chair showing my new design;

FIG. 2 is a left side elevational view of the chair of FIG. 1;

FIG. 3 is a right side elevational view of the chair of FIG. 1;

FIG. 4 is a front elevational view of the chair of FIG. 1;

FIG. 5 is a rear elevational view of the chair of FIG. 1;

FIG. 6 is a top plan view of the chair of FIG. 1; and,

FIG. 7 is a bottom plan of the chair of FIG. 1.

The ornamental design for an exercise chair, as shown and described.